The German website Handeslblatt reports that the Taiwanese manufacturer has lost a patent violation suit in favor of IPCom GmbH. The latter company claimed HTC has to pay license fees for some UMTS patents used in its Windows Mobile and Android handsets.

On February 27, a German court confirmed that HTC infringed the “100 series” patents, which IPCom reportedly bought from Robert Bosch GmbH in 2006.

Moreover, IPCom has also filed a complaint against Google, since the big G is involved in the making of HTC’s Android devices.

Bernhard Frohwitter, director of IPCom GmbH, said that if they won’t reach an agreement with HTC, the Taiwanese company may be forced to stop selling UMTS smartphones in Germany, including the T-Mobile G1 and the yet-to-come HTC Magic.